CTC is a coalition-based community prevention operating system, developed by SDRG's David Hawkins and Richard Catalano, that uses a public health approach to prevent youth problem behaviors including underage drinking, tobacco use, violence, delinquency, school dropout and substance abuse.

CTC is grounded in rigorous research from social work, public health, psychology, education, medicine, criminology, and organizational development. It engages all community members who have a stake in healthy futures for young people and sets priorities for action based on community challenges and strengths. Clear, measurable outcomes are tracked over time to show progress and ensure accountability.